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Issue #15 CVariant can convert between CVariantList and our other container classes

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This commit is contained in:
Mat Sutcliffe
2019-02-26 01:51:11 +00:00
parent e8a0a0b6ba
commit 07f6c8b73c
11 changed files with 212 additions and 13 deletions
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53
src/blackmisc/variant.cpp
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@@ -14,6 +14,7 @@
#include "blackmisc/logmessage.h"
#include "blackmisc/propertyindex.h"
#include "blackmisc/statusmessage.h"
#include "blackmisc/variantlist.h"
#include "blackmisc/variant.h"
#include <QByteArray>
@@ -42,6 +43,58 @@ namespace BlackMisc
return v.value<IValueObjectMetaInfo *>();
}
bool CVariant::canConvert(int typeId) const
{
if (m_v.canConvert(typeId))
{
return true;
}
if (typeId == qMetaTypeId<CVariantList>())
{
return m_v.canConvert<QVector<CVariant>>() || m_v.canConvert<QVariantList>();
}
if (userType() == qMetaTypeId<CVariantList>())
{
return QVariant::fromValue(QVector<CVariant>()).canConvert(typeId)
|| QVariant(typeId, nullptr).canConvert<QVariantList>();
}
return false;
}
bool CVariant::convert(int typeId)
{
if (!m_v.canConvert(typeId))
{
if (!canConvert(typeId)) { return false; }
if (typeId == qMetaTypeId<CVariantList>())
{
if (m_v.canConvert<QVector<CVariant>>())
{
if (!m_v.convert(qMetaTypeId<QVector<CVariant>>())) { return false; }
}
else if (m_v.canConvert<QVariantList>())
{
m_v.setValue(CVariantList(m_v.value<QSequentialIterable>()));
}
else { return false; }
}
if (userType() == qMetaTypeId<CVariantList>())
{
if (QVariant::fromValue(QVector<CVariant>()).canConvert(typeId))
{
if (!m_v.convert(qMetaTypeId<QVector<CVariant>>())) { return false; }
}
else { return false; }
}
}
return m_v.convert(typeId);
}
bool CVariant::isVariantList() const
{
return userType() == qMetaTypeId<CVariantList>();
}
QString CVariant::convertToQString(bool i18n) const
{
auto *meta = getValueObjectMetaInfo();